Trolley.



s. I. WALKER & A. W. WALTON.

TROLLEY.

APPLICATION I'ILEDYJUNE 9, 1909.

1,069,208. Patented Aug. 5, 1913.-

atbomew COLUMBIA PLANOGRAPH co, wAsmN c.

UNITED STATES ()FFTQE SAMUEL F. WALKER, OF BOZEMAN, AND ALBERT W.WALTON, OF BUTTE, MONTANA; SAID WALKER ASSIGNOR TO SAID \VALTON.

/ TROLLEY.

Specification of Letters Patent.

Application filed June 9, 1903.

Patented Aug. 5,1913.

Serial No. 501,086.

To'all whom. it may concern:

Be it known that we, SAMUEL F. VALKER.

and ALBERT NAUION, citizens of the United States, residing,respectively, at Bozeman, county of Gallatin, and Butte, county ofSilverbow, both in the State of Montana, have invented certain new anduseful Improvements in Trolleys, of which the following is aspecification.

Thepresent invention comprehends certain new and useful: improvements introlleys for electric railways,.and the object. of the invention is toprovide; an. improved finder, and toprovide improved. means forpositively actuating the finder so. as to project the same above the.trolley wheel to assist in replacing the wheel in. engagement with thetrolley wire.

Another object of the. invention is. to provide a finder consisting ofspaced members that are pivotally mounted: onopposite sides of thetrolley wheel in such a manner as to turn together, said membersnormally assuming an inoperative position so as to be entirely out ofthe way.

A further object of the invention is to provide cam slots on one of themembers of the finder, and to provide means engaging with and operatingin the cam slots for turning both finder members about their pivots.

lVith this and other objects in View that will more fully appear as thedescription proceeds, the invention consists in certain constructionsand arrangements of the parts that we shall hereinafter fully describe,and then point out the novel features thereof in the appended claim.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction, reference isto be had to the following description and accompanying drawings, inwhich:

Figure l is a side elevation of a trolley equipped with theimprovement-s of our in vention, and, Fig. 2 is an end view thereof.

Corresponding and likeparts are referred to in the following descriptionand indicated in all the views of the drawings by the same referencecharacters.

The trolley pole 12 terminates at its outer or free end in a downwardlycurved sup porting arm 17 that carries a bifurcated bracket or harp 18,the shank 19 of the bracket being journaled in the supporting a-rm, soas to turn about a substantially vertical. axis in the operativeposition of the trolley pole. Inter-posed between the bifurcations ofthe bracket is a trolley wheel 20 which is rotatably mounted on an axle21. that. extends transversely of and is journaled in the bifurcations.By virtue of the swiveled connection of the bracket, the trolley wheelis adapted toturn laterally to accommodate itself to the trolley wirewhen rounding a: curve. In order to yieldingly maintain the trolleywheel against such turning movement, however, a flat spring 22: issecured to the extremity of the sup porting arm and projects upwardlytherebeyond and bears against the bracket 18. A guard plate 23 isadjustably secured to the outer end of the pole with one edge disposedin close proximity to the adjacent portion of the periphery of thetrolley wheel, thereby precluding the possibility of transverse guidewires or the like becoming lodged between the wheel and the curvedsupporting arm 17.

The extremities of the axle 21 preferably project beyond thecorresponding bifurcations of the bracket and have side members 24fitted thereon at corresponding intermediate points, the projecting endsof the axle being preferably polygonal in cross section and the openingsin the side members for the reception of such ends being similar inform, to insure of the side members swinging together. The outer ends ofthe side members project beyond the periphery of the trolley wheel andare oppositely and laterally deflected to constitute finders 25,metallic shoes 26 being secured to the opposing faces of the finders toprotect the same from wear. The finders are considerably heavier thanthe opposite ends of the side members and therefore tend to swingdownwardly by gravity to assume inoperative positions below the upperportion of the trolley wheel.

One of the side members 24: is provided at its inner end with a housing27 the opposing side walls of which are formed with corresponding camslots 28. Operating in the slots are laterally turned lugs 29 formed atthe upper end of a link 30 which projects into the housing. The linkdepends from the housing with its lower end extending below the curvedsupporting arm 17 and terminating in a guide ring 81 through whichpasses a controlling rope 32, the rope being fastened at its upper endto an eye 33 that is secured to the supporting arm at a point removedfrom the guide ring. Intermediate of the eye and the guide ring and inclose proximity to the latter, the rope is knotted, as indicated at 34,whereby to limit its downward movement through the guide ring. A tensionspring 35 is connected to the rope below the guide ring and pullsupwardly on the same, so as to normally maintain the rope slack betweenthe guide ring and the securing eye 83 and thus relieve the link 30 oftension and admit of the finders assuming inoperative positions.

In order to actuate the finders it is merely necessary for the operatorto pull downwardly on the rope against the tension of the spring 35 tomove the knot 3st against the guide ring 31, the continued tension onthe rope taking up the slack between the guide ring and the eye 33 andexerting downward tension upon the link 30, whereby to turn the sidemembers in such a direction as to project the finders upwardly above thetrolley wheel. The rope 32 is pendent in convenient reach from theadjacent platform of the car and is also used for controlling theposition of the trolley pole.

Having thus described the invention what is claimed as new is:

A wire finder for trolley heads comprising an axle journaled in the harpand dis- S5 posed to support the trolley wheel fingers supported on theterminals of the axle at a point adjacent their ends, the fingersnormally being disposed parallel with the trolley wire, the terminaladjacent the pivot of one of the fingers being curved and provided withan arcuate slot, a link one terminal of which is provided with a lugextending within said slot, the terminal of the link remote from the lugbeing formed with a loop, an eye supported by the harp, the trolley ropehaving one of its terminals secured to said eye, the rope passingthrough the loop of the link and being knotted intermediate the loop andthe eye, and a spring connecting the harp and the rope whereby the ropeis maintained slack above the loop.

In testimony whereof we afiiX our signatures in presence of twowitnesses.

SAMUEL F. WVALKER.

ALBERT W. WVALTON. lVitnesses for Walker:

J. D. WVERLING,

C. S. PIPER. lVitnesses for Walton:

M. D. KELLY,

C. S. PIPER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

